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Nicotine DependenceNCT00844701

Cue Induced Imaging in Nicotine Dependent Smokers

An observational study of Nicotine Dependence, run by Medical University of South Carolina at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the relationship between craving to smoke and areas activated in brain. The researchers are using functional magnetic resonance imaging (MRI) that measures brain blood flow, or perfusion, to study this brain activation. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Nicotine Dependence
How many people
52 participants
Where
1 siteUnited States
Study dates
Feb 2008to Dec 2009
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: adult nicotine dependent smokers

Who may be able to join

  • Age 18 - 60.
  • Participants will meet criteria for primary nicotine dependence, smoke at least 70% of days in the last 30 days prior to assessment.
  • Able to read and understand questionnaires and informed consent.
  • Right-handed.
  • Currently is not engaged in, and does not want, treatment for nicotine related problems.
  • Able to maintain abstinence from nicotine during the study period.
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  • Participants must have a negative rapid-screening UDS and pregnancy test prior to imaging session.
  • Age 18 - 60.
  • Does not meet the DSM-IV criterion for lifetime or current substance dependence.
  • Has used tobacco products no more than on experimental basis (none in past year).
  • Participants must have a negative rapid-screening UDS and pregnancy test prior to session.
  • Righthanded.

Who cannot join

  • Currently meets DSM-IV criteria for any other psychoactive substance dependence disorder except nicotine dependence.
  • Any psychoactive substance abuse within the last 30 days as evidenced by subject report or urine drug screen.
  • Meets DSM-IV criteria for current axis I disorders of major depression, panic disorder, obsessive compulsive disorder, post-traumatic stress syndrome, bipolar affective disorder, schizophrenia, or any other psychotic disorder or organic mental disorder. The rationale for excluding them is that symptoms from these disorders may affect dependent variables and complicate interpretation of the data.
  • Has current suicidal ideation with plan or homicidal ideation.
  • Need for maintenance or acute treatment with any psychoactive medication including antiseizure medications.
  • Clinically significant medical problems such as cardiovascular, renal, GI, or endocrine problem that would impair participation or limit ability to participate in scan.
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  • Sexually active females of child-bearing potential who are pregnant (by urine HCG), nursing, or who are not using a reliable form of birth control.
  • Has current charges pending for a violent crime (not including DUI related offenses).
  • Persons with ferrous metal implants or pacemaker since fMRI will be used.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical University of South Carolina

    Charleston, South Carolina, 29425

Other trials in United States

About this study

Official title: Validation of Cue Induced Imaging Paradigm in Nicotine Dependent Smokers

The purpose of this study is to evaluate the relationship between craving to smoke and areas activated in brain. The researchers are using functional magnetic resonance imaging (MRI) that measures brain blood flow, or perfusion, to study this brain activation.

Read the detailed description

Functional magnetic resonance imaging has demonstrated that the same types of environmental cues that induce craving activate an integrated network of brain areas involved in the appetitive and motivational process of addiction to drugs of abuse including nicotine ( Brieter 119; Koob 2001, Volkow 2003).In nicotine deprived smokers both mesolimbic dopamine reward pathways (amygdala, ventral tegmental area, and medial thalamus) and areas related to visuospatial attention (bilateral prefrontal cortex and parietal cortex and right fusiform gyrus) are activated by exposure to smoking images (Due 2002, David 2005).

In line with the National Institute on Drug Abuse's (NIDA) emphasis on novel methods for investigating substance use disorders, the current study proposes to use fMRI to better understand the neurological correlates of cue reactivity among nicotine dependent smokers. This approach will permit the isolation of pathways that are relevant to cue induced craving.

Keywords
nicotine, addiction, fMRI, neuroimaging, neurobiology, craving
Medical subject headings
Tobacco Use Disorder, Behavior, Addictive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00844701
Study groupRoleWhat they receive
Non-smokerNon-smoking control
Nicotine Dependent Smoking Groupcurrent smokers

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Feb 2009 (estimated)
  2. Study startFeb 2008
  3. Primary completionDec 2009
  4. Study completionDec 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00844701
Sponsor's protocol ID
BOLD fMRI
Status last verified
Oct 2009
First submitted
12 Feb 2009
Last updated
1 Nov 2012
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Nicotine Dependence, run by Medical University of South Carolina at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Nov 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Nov 2012.

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Cue Induced Imaging in Nicotine Dependent Smokers | AzTrials